<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>

</body>
<script>
    function Man(){};

    Man.prototype.init = function(){
        console.log(1);
    };
    Man.prototype.look = function(){
        console.log(2);
    };

    var man = Object.create(Man.prototype);

    console.log(man);
    console.log(new Man());

</script>
</html>